As the Arctic sea ice continues to disappear, Beluga whales are running out of food. Beluga whales are classified as a "near threatened" species by the International Union for the Conservation of Nature.
Advanced tagging technology has captured never-before-seen data on how deep beluga whales will dive for food. Researchers say their foraging patterns are largely based on the abundance of Arctic cod and sea-floor topography.
While some animals use color to express their mood, Beluga whales blow bubbles toshow how they are feeling. Using their mouths and blowholes, the large-headed whales may produce one of four differently-shaped bubbles to signal feelings of aggression, fear, or playfulness, for example.